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FPUTWC(3)                  Linux Programmer's Manual                 FPUTWC(3)



NAME
       fputwc, putwc - write a wide character to a FILE stream

SYNOPSIS
       #include <stdio.h>
       #include <wchar.h>

       wint_t fputwc(wchar_t wc, FILE *stream);
       wint_t putwc(wchar_t wc, FILE *stream);

DESCRIPTION
       The  fputwc() function is the wide-character equivalent of the fputc(3) function.  It writes the wide character
       wc to stream.  If ferror(stream) becomes true, it returns WEOF.  If a wide-character conversion  error  occurs,
       it sets errno to EILSEQ and returns WEOF.  Otherwise it returns wc.

       The  putwc()  function  or  macro functions identically to fputwc().  It may be implemented as a macro, and may
       evaluate its argument more than once.  There is no reason ever to use it.

       For non-locking counterparts, see unlocked_stdio(3).

RETURN VALUE
       The fputwc() function returns wc if no error occurred, or WEOF to indicate an error.

ERRORS
       Apart from the usual ones, there is

       EILSEQ Conversion of wc to the stream's encoding fails.

CONFORMING TO
       C99, POSIX.1-2001.

NOTES
       The behavior of fputwc() depends on the LC_CTYPE category of the current locale.

       In the absence of additional information passed to the fopen(3) call, it is reasonable to expect that  fputwc()
       will actually write the multibyte sequence corresponding to the wide character wc.

SEE ALSO
       fgetwc(3), fputws(3), unlocked_stdio(3)

COLOPHON
       This  page  is part of release 3.22 of the Linux man-pages project.  A description of the project, and informa-
       tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



GNU                               1999-07-25                         FPUTWC(3)